Service difficulty report · Intercostal · Boeing 7378H4

Difficulty date
January 2, 2018
Submitted
February 8, 2022
Operation
Air carrier
Aircraft
N8310C
Make and model
Boeing 7378H4
Aircraft serial
38807
Aircraft time
20,418 hours, 8,725 cycles
Part
Intercostal
Condition
Corroded
Location
Aft Cargo Bay
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

AFT PIT VERTICAL INTERCOSTAL BELOW RH Z-ANGLE BETWEEN STATIONS 747 AND 767 IS CORRODED IN 5 EACH LOCATIONS ON LOWER SIDE OF UPPER FLANGE. / AFT PIT INTERCOSTAL BELOW R/H Z-ANGLE BETWEEN STA 747 AND 767 CORROSION BLENDED 'OUT OF LIMITS' AT ORIGINAL .050 REMAINING .043' REMOVED .007'. REPLACED WITH PN: 146A7505-8 TAG# HJ0673 IAW BOEING DWG # 146A 7505 AND SRM 51-40-02-0G-0

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